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Continue process if suspended.

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This commit is contained in:
Nicholas Marriott
2009-02-08 16:11:26 +00:00
parent 85fd2147af
commit 62d2ab3e68
6 changed files with 62 additions and 13 deletions
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48
server.c
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@@ -1,4 +1,4 @@
/* $Id: server.c,v 1.116 2009-01-29 20:13:12 nicm Exp $ */
/* $Id: server.c,v 1.117 2009-02-08 16:11:26 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -21,6 +21,7 @@
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/un.h>
#include <sys/wait.h>
#include <errno.h>
#include <fcntl.h>
@@ -44,6 +45,7 @@ struct clients clients;
int server_main(const char *, int);
void server_shutdown(void);
void server_child_signal(void);
void server_fill_windows(struct pollfd **);
void server_handle_windows(struct pollfd **);
void server_fill_clients(struct pollfd **);
@@ -230,6 +232,12 @@ server_main(const char *srv_path, int srv_fd)
if (sigterm)
server_shutdown();
/* Handle child exit. */
if (sigchld) {
server_child_signal();
sigchld = 0;
}
/* Initialise pollfd array. */
nfds = 1;
for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
@@ -358,6 +366,44 @@ server_shutdown(void)
server_write_client(c, MSG_SHUTDOWN, NULL, 0);
}
}
/* Handle SIGCHLD. */
void
server_child_signal(void)
{
struct window *w;
struct window_pane *wp;
int status;
pid_t pid;
u_int i;
for (;;) {
switch (pid = waitpid(WAIT_ANY, &status, WNOHANG|WUNTRACED)) {
case -1:
if (errno == ECHILD)
return;
fatal("waitpid");
case 0:
return;
}
if (!WIFSTOPPED(status))
continue;
if (WSTOPSIG(status) == SIGTTIN || WSTOPSIG(status) == SIGTTOU)
continue;
for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
w = ARRAY_ITEM(&windows, i);
if (w == NULL)
continue;
TAILQ_FOREACH(wp, &w->panes, entry) {
if (wp->pid == pid) {
if (killpg(pid, SIGCONT) != 0)
kill(pid, SIGCONT);
}
}
}
}
}
/* Fill window pollfds. */
void